Atmel part numbers

Atmel (AVR ATmega/ATtiny, SAM Arm MCUs, AT24/AT25 EEPROM, CryptoAuthentication) was acquired by Microchip Technology in 2016.

Atmel is now Microchip Technology (2016). We quote Atmel parts — current, obsolete and end-of-life — and parts that carry older Atmel markings. See also all Microchip Technology part numbers.

5,159 Atmel heritage part numbers

Part-number families from Atmel, listed under their current manufacturer.

Part numberManufacturerTypePackageKey specs
ATTINY88-MMU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-28-EP(4x4) 12MHzAVR
ATTINY88-MU Microchip Technology Microcontroller Units (MCUs/MPUs/SOCs) VQFN-32-EP(5x5) 12MHzAVR
ATTINY88-MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-32-EP(5x5) 12MHzAVR
ATTINY88-PU Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-28 12MHzAVR
ATTINY9-MAHR Microchip Technology Microcontroller Units (MCUs/MPUs/SOCs) DFN-8(2x2) 12MHzAVR
ATTPM20P-G3MA1-10-B Microchip Technology Interface - Specialized UDFN-8(2x3) SPI3.3V
ATUC128D3-A2UT Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-64(10x10) 48MHzAVR
ATUC128D4-AUT Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 48MHzAVR
ATUC128D4-Z1UT Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-48(7x7) 48MHzAVR
ATUC128L3U-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 50MHzAVR
ATUC128L3U-AUT Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 50MHzAVR
ATUC128L3U-Z3UR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 50MHzAVR
ATUC128L3U-Z3UT Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 50MHzAVR
ATUC128L4U-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 50MHzAVR
ATUC128L4U-AUT Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 50MHzAVR
ATUC128L4U-D3HT Microchip Technology Microcontrollers (MCU/MPU/SOC) TLLGA-48(5.5x5.5) 50MHzAVR
ATUC256L3U-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 50MHzAVR
ATUC256L3U-AUT Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 50MHzAVR
ATUC256L3U-Z3UR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 50MHzAVR
ATUC256L3U-Z3UT Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 50MHzAVR
ATUC256L4U-AUT Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 50MHzAVR
ATUC256L4U-D3HT Microchip Technology Microcontrollers (MCU/MPU/SOC) TLLGA-48(5.5x5.5) 50MHzAVR
ATUC256L4U-ZAUR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-48-EP(7x7) 50MHzAVR
ATUC256L4U-ZAUT Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-48(7x7) 50MHzAVR
ATUC64D3-A2UR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 48MHzAVR
ATUC64D3-A2UT Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 48MHzAVR
ATUC64D3-Z2UT Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 48MHzAVR
ATUC64D4-AUT Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 48MHzAVR
ATUC64D4-Z1UR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-48-EP(7x7) 48MHzAVR
ATUC64D4-Z1UT Microchip Technology Microcontrollers (MCU/MPU/SOC) WQFN-48-EP(7x7) 48MHzAVR
ATUC64L3U-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 50MHzAVR
ATUC64L3U-AUT Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 50MHzAVR
ATUC64L3U-Z3UR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 50MHzAVR
ATUC64L3U-Z3UT Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 50MHzAVR
ATUC64L4U-AUT Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 50MHzAVR
ATUC64L4U-D3HT Microchip Technology Microcontrollers (MCU/MPU/SOC) TLLGA-48(5.5x5.5) 50MHzAVR
ATUC64L4U-ZAUR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-48-EP(7x7) 50MHzAVR
ATUC64L4U-ZAUT Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-48(7x7) 50MHzAVR
ATULPC-DEMO Microchip Technology Pre-Ordered MCUs ARM Cortex-M0+3V
ATWINC1500B-MU-Y Microchip Technology RF Transceiver ICs QFN-40(5x5) SPI, UART, I2C, SDIO72.2Mbps
ATWINC1510B-MU-Y Microchip Technology RF Transceiver ICs QFN-40(5x5) 72.2Mbps2.7V~3.6V
ATXMEGA128A1-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 32MHzAVR
ATXMEGA128A1-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 32MHzAVR
ATXMEGA128A1-C7U Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 32MHzAVR
ATXMEGA128A1-C7UR Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 32MHzAVR
ATXMEGA128A1-CU Microchip Technology Microcontrollers (MCU/MPU/SOC) CBGA-100 32MHzAVR
ATXMEGA128A1U-AN Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 32MHzAVR
ATXMEGA128A1U-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 32MHzAVR
ATXMEGA128A1U-C7U Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 32MHzAVR
ATXMEGA128A1U-CN Microchip Technology Microcontrollers (MCU/MPU/SOC) CBGA-100 32MHzAVR
ATXMEGA128A1U-CNR Microchip Technology Microcontrollers (MCU/MPU/SOC) TFBGA-100 32MHzAVR
ATXMEGA128A1U-CU Microchip Technology Microcontrollers (MCU/MPU/SOC) CBGA-100 32MHzAVR
ATXMEGA128A3-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 32MHzAVR
ATXMEGA128A3-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 32MHzAVR
ATXMEGA128A3-MH Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 32MHzAVR
ATXMEGA128A3U-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 32MHzAVR
ATXMEGA128A3U-MH Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 32MHzAVR
ATXMEGA128A3U-MHR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 32MHzAVR
ATXMEGA128A4U-AN Microchip Technology Pre-Ordered MCUs TQFP-44(10x10) 32MHzAVR
ATXMEGA128A4U-ANR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 32MHzAVR

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Frequently asked questions

Is Atmel still in business?

Atmel (AVR ATmega/ATtiny, SAM Arm MCUs, AT24/AT25 EEPROM, CryptoAuthentication) was acquired by Microchip Technology in 2016.

Can I still buy Atmel parts?

Yes. PartnerSemi quotes Atmel part numbers, including obsolete and end-of-life parts and parts with old Atmel markings. Send the part number and quantity; we reply with price, lead time, date code and origin. We are an independent distributor, not an authorized Atmel or Microchip Technology distributor.

PartnerSemi is not affiliated with Atmel or Microchip Technology. Brand names are used to identify parts only.